double min_by_cpu = surf_cpu_model_pm->next_occuring_event(now);
double min_by_net =
surf_network_model->next_occuring_event_is_idempotent() ? surf_network_model->next_occuring_event(now) : -1;
double min_by_cpu = surf_cpu_model_pm->next_occuring_event(now);
double min_by_net =
surf_network_model->next_occuring_event_is_idempotent() ? surf_network_model->next_occuring_event(now) : -1;